package com.teamone.etl.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.time.Duration;
import org.springframework.cache.CacheManager;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

/**
 * @Description 
 * @Author WangZhuoRan
 * @Email  2908540863@qq.com
 * @Create 2021-01-22 18:34
 * @Program star-etl
 */
public class RedisConfig {

    /**
     自定义RedisTemplate
     @param redisConnectionFactory redis连接工厂
     @return redistemplate实例对象
     */
    @Bean
    public RedisTemplate<String, Integer> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
        RedisTemplate<String, Integer> template = new RedisTemplate<>();
        template.setConnectionFactory(redisConnectionFactory);
        //使用JSON格式的序列化,保存
        Jackson2JsonRedisSerializer<Integer> serializer = new Jackson2JsonRedisSerializer<>(Integer.class);
        template.setDefaultSerializer(serializer);
        return template;
    }

    /**
     自定义cacheManager缓存管理器
     @param factory
     @return
     */
    @Bean
    public CacheManager cacheManager(RedisConnectionFactory factory) {
        RedisSerializer<String> redisSerializer = new StringRedisSerializer();
        Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<>(Object.class);

        //解决查询缓存转换异常的问题
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(om);

        //配置序列化(解决乱码的问题)
        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig()
                .entryTtl(Duration.ZERO)
                .serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(redisSerializer))
                .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(jackson2JsonRedisSerializer))
                .disableCachingNullValues();

        return RedisCacheManager.builder(factory)
                .cacheDefaults(config)
                .build();
    }

}
